2. SCHLUMBERGER Processing & Separation – Gas Processing & Treatment

Product Description

SCHLUMBERGER Processing & Separation- Gas Processing & Treatment

PUREMEG Reclamation and Regenerating Unit

Description:

Monoethylene glycol (MEG) is widely used by the oil and gas markets in wellheads and pipelines as a hydrate suppressor to prevent hydrate formation at pipeline conditions. On offshore, deepwater gas-production facilities, where the exposure to lower temperatures in subsea pipelines is common, MEG typically is used for hydrate inhibition.
PUREMEG MEG reclamation and regeneration units not only regenerate the MEG by boiling off the pipeline water, they also remove salts and other solids to achieve the required outlet glycol purity. Dissolved salts in formation water, pipeline production chemicals, and pipe scale all have the potential to scale or foul both subsea and topside processing equipment. This MEG recovery system is therefore an essential component of pipeline flow assurance.

Advantages:

The unit provides effective and proven salt removal.

Low solids levels in the recycle loop protect the most expensive and vulnerable parts of the system from abrasion, erosion, and fouling, which reduces maintenance and increases plant availability.

The technology significantly reduces MEG losses and produces a waste stream suitable for marine disposal, by separating salt from brine.

Solids removal is achieved without the use of centrifuges, unlike other systems on the market. This avoids use of expensive, high-maintenance equipment and prevents oxygen contamination of the MEG. (Oxygen is a main contributor to MEG degradation and material corrosion within reclamation systems, impacting both opex and the life of the plant.)

The MEG reboiler is designed to avoid hydrocarbon foaming and the fouling of packing associated with conventional systems.

The proprietary divalent salt removal system is capable of handling a diverse range of water chemistries, solids loadings, and particle-size distributions.